11280923 has 4 divisors (see below), whose sum is σ = 11287728. Its totient is φ = 11274120.

The previous prime is 11280883. The next prime is 11280937. The reversal of 11280923 is 32908211.

11280923 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 11280923 - 2¹² = 11276827 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11280892 and 11280901.

It is not an unprimeable number, because it can be changed into a prime (11280943) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 890 + ... + 4832.

It is an arithmetic number, because the mean of its divisors is an integer number (2821932).

Almost surely, 2^11280923 is an apocalyptic number.

11280923 is a deficient number, since it is larger than the sum of its proper divisors (6805).

11280923 is an equidigital number, since it uses as much as digits as its factorization.

11280923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6804.

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 11280923 is about 3358.7085315639. The cubic root of 11280923 is about 224.2753509601.

The spelling of 11280923 in words is "eleven million, two hundred eighty thousand, nine hundred twenty-three".